What is keyscrambler?

Keyscrambler.sys is a Windows driver. A driver is a small software program that allows your computer to communicate with hardware or connected devices. This means that a driver has direct access to the internals of the operating system, hardware etc. The free file information forum can help you determine if keyscrambler.sys is a Windows system file or if it belongs to an application that you can trust.

Run a free scan to check for keyscrambler drivers in need of updating

Keyscrambler.sys file information

The process known as KeyScrambler Keyboard Encryption Driver or KeyScrambler Keyboard Driver belongs to software KeyScrambler or Windows (version 2000 DDK driver) by QFX Software ( or Windows ( (version 2000 DDK provider).

Description: Keyscrambler.sys is not essential for the Windows OS and causes relatively few problems. Keyscrambler.sys is located in the C:\Windows\System32\drivers folder. Known file sizes on Windows 10/8/7/XP are 113,896 bytes (16% of all occurrences), 115,312 bytes and 14 more variants. 
The driver can be started or stopped from Services in the Control Panel or by other programs. The program has no visible window. The keyscrambler.sys file is a keyboard driver, can record inputs. There is no detailed description of this service. Keyscrambler.sys is not a Windows core file. The file is digitally signed. keyscrambler.sys appears to be a compressed file. Therefore the technical security rating is 58% dangerous, however you should also read the user reviews.

Uninstalling this variant: The developer Qfxsoftware provides a support site for assistance, and an uninstaller (Control Panel ⇒ Uninstall a Program ⇒ QFX Software Corporation).

Recommended: Identify keyscrambler.sys related errors

Important: Some malware disguises itself as keyscrambler.sys, particularly when not located in the C:\Windows\System32\drivers folder. Therefore, you should check the keyscrambler.sys process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.


User Comments

KeyScrambler dient zum Schutz gegen Keylogger, er verschlüsselt die Tastaturanschläge
  Dirty Herry   (further information)
keysscrambelr ist eine Systemdatei des gleichnamigen Keylogger-Schutzprograms. Ersezt anscheinend ohne nachzufragen Windows Systemdateien. auch nach ordnungsgemässer desinstallation bleibt die keyscrambler .sys zurück . Löscht man sie manuell funtionier die tastatur nichtmehr. Also Vorsicht mit solch eigenartigen Programmen! eigene leidvolle Erfahrung mit keyscrambler
  mein name  

Summary: Average user rating of keyscrambler.sys: based on 3 votes with 2 user comments. 2 users think keyscrambler.sys is essential for Windows or an installed application. One user suspects danger.

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Best practices for resolving keyscrambler issues

A clean and tidy computer is the key requirement for avoiding problems with keyscrambler. This means running a scan for malware, cleaning your hard drive using 1cleanmgr and 2sfc /scannow, 3uninstalling programs that you no longer need, checking for Autostart programs (using 4msconfig) and enabling Windows' 5Automatic Update. Always remember to perform periodic backups, or at least to set restore points.

Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the 6resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or, for Windows 8 and later versions, executing the 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the keyscrambler.sys process on your computer, the following programs have proven to be helpful: ASecurity Task Manager displays all running Windows tasks, including embedded hidden processes, such as keyboard and browser monitoring or Autostart entries. A unique security risk rating indicates the likelihood of the process being potential spyware, malware or a Trojan. BMalwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

keyscrambler.sys [all]